"P.S My Sunshine" (stylized as "P.S♡MY SUNSHINE") a song by Japanese singer-songwriter Mai Kuraki from her fifth Fuse of Love (2005). The song was written by Kuraki and Hitoshi Okamoto, and produced by Kuraki herself and Kannonji. The song served as the seasonal theme song to Mezamashi Saturday. The single was released on 1 June 2005 through Giza Studio as the third single from Fuse of Love.